<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" lang="en">
<head>
    <meta charset="UTF-8">
    <title>home</title>

    <link rel="stylesheet" type="text/css" href="/webjars/bootstrap/css/bootstrap.min.css"/>
    <script type="text/javascript" src="/webjars/jquery/jquery.min.js"></script>
    <script type="text/javascript" src="/webjars/bootstrap/js/bootstrap.min.js"></script>
</head>
<body>
you enter home page successfully.
<br>
<form method="post" action="/logout">
    <input type="hidden" th:name="${_csrf.parameterName}" th:value="${_csrf.token}">
    <input type="submit" value="logout" class="btn btn-success">
</form>
</body>
</html>